.section1 {
    position: absolute;
    height: 480px;
    width: 100%;
    top: 190px;

    .w {
        ul {
            z-index: 3;
            position: relative;
            width: 200px;

            li {
                line-height: 57px;
                font-size: 10px;
                color: #666;
                width: 200px;
                background-color: #e9ecec;
                border-bottom: 1px solid #ccc;

                span {
                    padding-left: 15px;
                    color: black;
                    font-size: 12px;
                }

                .nav {
                    position: absolute;
                    display: none;
                    top: 0px;
                    left: 200px;
                    height: 464px;
                    width: 1000px;
                    background-color: #fff;

                    span {
                        width: 700px;
                        height: 15px;
                        font-weight: bold;
                        margin-left: 5px;
                        padding-left: 0;
                        box-sizing: border-box;
                        color: #666;
                    }

                    strong {
                        width: 15px;
                        height: 15px;
                        border-left: 4px solid #666;
                        margin-left: 20px;
                    }

                    .allIcon {
                        ul {
                            width: 700px;

                            li {
                                width: 120px;
                                height: 48px;
                                float: left;
                                margin: 10px;

                                img {
                                    width: 100%;
                                    height: 100%;
                                }
                            }
                        }
                        .allIconR123 {
                            img{
                                position: absolute;
                                right: -260px;
                                top: -28px;
                            }
                        }
                    }
                }

                &:hover .nav {
                    display: block;
                    z-index: 3;
                }
            }
        }
    }

    .box2 {
        display: flex;
        justify-content: space-between;
    }
}